2gjl
From Proteopedia
Line 1: | Line 1: | ||
[[Image:2gjl.gif|left|200px]] | [[Image:2gjl.gif|left|200px]] | ||
- | + | <!-- | |
- | + | The line below this paragraph, containing "STRUCTURE_2gjl", creates the "Structure Box" on the page. | |
- | + | You may change the PDB parameter (which sets the PDB file loaded into the applet) | |
- | + | or the SCENE parameter (which sets the initial scene displayed when the page is loaded), | |
- | + | or leave the SCENE parameter empty for the default display. | |
- | | | + | --> |
- | | | + | {{STRUCTURE_2gjl| PDB=2gjl | SCENE= }} |
- | + | ||
- | + | ||
- | }} | + | |
'''Crystal Structure of 2-nitropropane dioxygenase''' | '''Crystal Structure of 2-nitropropane dioxygenase''' | ||
Line 28: | Line 25: | ||
[[Category: Suh, S W.]] | [[Category: Suh, S W.]] | ||
[[Category: 2-nitropropane]] | [[Category: 2-nitropropane]] | ||
- | [[Category: | + | [[Category: Fmn]] |
- | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 05:10:51 2008'' | |
- | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + |
Revision as of 02:10, 4 May 2008
Crystal Structure of 2-nitropropane dioxygenase
Overview
Nitroalkane compounds are widely used in chemical industry and are also produced by microorganisms and plants. Some nitroalkanes have been demonstrated to be carcinogenic, and enzymatic oxidation of nitroalkanes is of considerable interest. 2-Nitropropane dioxygenases from Neurospora crassa and Williopsis mrakii (Hansenula mrakii), members of one family of the nitroalkane-oxidizing enzymes, contain FMN and FAD, respectively. The enzymatic oxidation of nitroalkanes by 2-nitropropane dioxygenase operates by an oxidase-style catalytic mechanism, which was recently shown to involve the formation of an anionic flavin semiquinone. This represents a unique case in which an anionic flavin semiquinone has been experimentally observed in the catalytic pathway for oxidation catalyzed by a flavin-dependent enzyme. Here we report the first crystal structure of 2-nitropropane dioxygenase from Pseudomonas aeruginosa in two forms: a binary complex with FMN and a ternary complex with both FMN and 2-nitropropane. The structure identifies His(152) as the proposed catalytic base, thus providing a structural framework for a better understanding of the catalytic mechanism.
About this Structure
2GJL is a Single protein structure of sequence from Pseudomonas aeruginosa. Full crystallographic information is available from OCA.
Reference
Crystal structure of 2-nitropropane dioxygenase complexed with FMN and substrate. Identification of the catalytic base., Ha JY, Min JY, Lee SK, Kim HS, Kim do J, Kim KH, Lee HH, Kim HK, Yoon HJ, Suh SW, J Biol Chem. 2006 Jul 7;281(27):18660-7. Epub 2006 May 8. PMID:16682407 Page seeded by OCA on Sun May 4 05:10:51 2008